Winding-machine



EDWARD C. CHAPMAN, OF PBQVIDENCE, RHODE ISLAND.

WINDING-MACHINE.

Specification of Letters Patent. Pater 1156a Mar. 30, 1920- Application filed April 4. 1913. Serial No. 287,518.

To all ("f/1.0m it may concern fie it known that l llnwann Unarmay, a citizen of the United States, residing at Providence, in the county of Providence and State of vhode Island, have invented a new and useful Improvement in lVinding-Machines, or which the following aspecification;

This invention relates to certain new and useful improvements in a winding machine for winding a skein of yarn from a reel or creel onto a spool or bobbin, and it resides in improved mechanism for automatically arresting the winding operation upon the occirrencc of a snarl in the yarn on the reel whereby the thread is prevented from breaking.

A. further object of the invention isto provide means for both disconnecting the bobbin or spool from its drive and positively locking the reel from movement, and a still further object is to provide the im proved mechanism whereby after the same has been arrested the reel-locking means may be reset and the yarn disentangled while the bobbin remains ineffective relative to the bobbins.

The invention further resides in the fea tures of construction and the arrangements and combinations of parts hereinafter described in detail and claimed in a succinct manner, referenc being had to the drawing wherein Figure 1 is an end elevation of the improved machine.

Fig. 2 is a vertical section therethrough longitudinally of the machine, depicting more clearly he bobbin drive disconnecting means, and

. Fig. 3 is a resting and locking lever.

The frame 1 has standards 2 rising from one side on which is journaled the shaft 3 that supports the creel or reel 4:, and fixed to the latter, either directly or through the shaft, is a star wheel 5 having peripheral recesses 6 in which a lateral pm 7, carried on the upper end of a lock arm 8 is adapted to engage for arresting the reel from the rotation.

The lock arm is fixed on one end of a rock shaft 9 which is journaled in a bearing 10 and carries a substantially horizontal fixed arm 11 on its opposite end. This latter arm is provided with a lateral lug 12 over which a latch hook 13 engages for holding the .pindle is a detailed view of the reel arlock arm out of the path of the star wheel.

his latch hook is formed on one arm of a bell crank lever 14 pivoted at 15 to the fran'ae 1 and carrying an upstanding thread guide 16 on the outer end of the opposite arm.

An upright support 17 extends along the opposite side of the frame, and fixed on this support are spaced pairs of brackets 18 having open bearings 19 for the shafts. of bobbins 20. Fixed on the bobbin shafts are drum-like or broad rimmed pulleys 21 with which the driving wheels of pulleys 22 normally have frictional contact, said drive pulleys being carried. on a common shaft 23 that is driven from a suitable source of power by means of the belt and pulley connection 24c.

Pivoted on a bracket 25 adjacent each lever 26 having a cam terminal 27 underlying the respective drum pulley 21 and its opposite end formed into a segmental gear 28 which meshes with a segmental gear 29 formed on one end of a lever 30 which is also pivoted to the bracket 25. The opposite end of this second lever 30 normally rests on the end of rock arm 11. In most types of winders heretofore used, if the yarn on the reel becomes snarled so as to prevent its drawing off freely the yarn will break thus causinga stoppage of the machine. In practice with the improvedconstiaiction, the yarn is passed through the thread guide 16 whereby when the yarn snarls and an excessive strain obtains thereon the thread guide is lifted to raise the horizontal supporting arm and rock the lever let to disengage its hook 13 from lug 12. Under the influence of a coiled spring 31, interposed between a ledge 82 on bearing 10 and arm 11, the latter is moved upwardly to rock shaft 9 and thereby swing the lock arm 8 into a recess 6 of the star wheel to arrest the reel from further rotation. 7

The upward movement of arm 11 also raises the superposed end of lever 30 to the dotted line position of the Fig. '1 which movement is imparted to lever 26 through the meshing segmental gears. The cam arm 127 is thus swung into contact with and beneath the respective drum pulley 21 to elevate it out of contact with the drive pulley 22, the elongated bearings 19 permitting such disengagement of the pulleys. The central bobbin in Fig. 2 indicates the man- The yarn is thereby saved from breaking by the automatic stopping of the particular bobbin without interrupting the drive for the remaining bobbins.

The structure has a particular and int portant advantage in that after the winding has automatically disconnected the lock arm the latch hook may be reset'thus leaving thereel free to unravel the yarn and put it inoperative condition before depressing the lever ,30 down to the full line position to rest on arm 11. After the machine is in readiness to continue the winding of the yarn the lever 80 is depressed to again seat on the arm 11 which movement swings the cam arm from under the drum pulley and permits it to drop into frictional con tact with thedrive pulley.

The operation is certain and automatic upon an abnormal strain being placed on the yarn, and the construction is simple with but few parts which only operate when the thread is not feeding correctly.

Having thus described my invention, what 7 I claim as new and desire to secure by Letters Patent is- 1. A thread winding-machine comprising a thread carrying reel, a notched wheel 1o tative therewith, a pivoted lock arm engageable with the wheel to arrest the reel, a second arm connected to the first arm, a latch hook engageable over the second arm to normally hold the lock arm inoperative, a thread guide connected to the latch hook and movable by the thread passing therethrough to disengage the hook from the second arm, a lever normally resting on the V latter and provided with a segmental gear, a second gear meshing with the first gear, a

cam lever connected to the second gear, a bobbin adapted to be moved in its bearings by said cam lever and means for driving the bobbin and rendered ineffective by movement of the bobbin away therefrom.

2. A thread winding machine comprising a thread carrying reel, a notched wheel rotative therewith, a pivoted lock arm engage able with the wheel to arrest the reel, a second arm connected to the first arm, a latch hook engageable over the second arm to normally hold the lock arm inoperative, a thread guide connected to the latch hook and movable by the thread passing there through to disengage the hook from the sec ond arm, a bobbin for receiving the thread means for driving the bobbin, and means operable by the second arm for'rendering the bobbin drive ineffective.

3. A thread Winding machine comprising a thread carrying reel, a notched wheel rotative therewith, a pivoted look arm engageable with the wheel to arrest the reel, a second arm connected to the first arm, a

I latch hook engageable over the second arm to normally hold the lock arm inoperative, a thread guide connected to the latch hook and movable by the thread passing therethrough to disengage the hook from the second arm, a bobbin to receive the thread, a drive for the bobbin, and means operable by movement of the thread guide for disconnecting the bobbin from its drive.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDWARD C. CHAPMAN.

Witnesses:

ADA E. HAGERTY, J. A. MLLER. 

